#u need imagemagick, gifsicle and ffmpeg
convert -delay 0 $(for i in $(seq 0 144); do echo ./earth-${i}.jpg; done) -loop 0 ./animated.gif
gifsicle ./animated.gif > ./out.gif --optimize
ffmpeg -f gif -i ./out.gif -vcodec libx264 -pix_fmt yuv420p ./outfile.mp4
rm *.jpg *.gif